Step 1: Grab a glass.
Step 2: Add a drop of green food coloring to the glass.
Step 3: Grab a beer (the lighter the better).
Step 4: Pour beer into the glass.
Step 5: Drink.
Step 6: Repeat. Repeat. Repeat. Repeat.
Step 7: Puke.
Think you can handle that?
*We googled 'make your own green beer' and found this recipe from About.com. We just had to laugh at the utter simplicity (I don't know what we were expecting).